I used samsung s - 1, 2, 3. , htc desire - 816 , , , sony eperia c5 , nokia lumia 650, black berry curve
from all these above the best phone I have used and still using is iphone 5s I dont even wish to upgrade to 6 or 6s coz this is perfect in shape and process , looking, user friendly . for me , always the best phone now & for ever is ios apple
iphone-5s